eSIM Flaw Hits Devices Worldwide
eSIM flaw hits devices with a new hacking risk in July 2025. Researchers found vulnerabilities in eUICC cards. For example, it affects over two billion IoT devices. This threat exposes users to serious attacks.
How the Vulnerability Works
The flaw lies in eSIM technology used in smartphones. Attackers exploit weak test profiles to install malicious code. Additionally, it allows profile tampering without detection. Consequently, devices face data theft risks.
Impact on IoT Devices
The vulnerability targets eUICC cards in IoT gadgets. It enables non-verified applets to infiltrate systems. For instance, attackers can extract identity certificates. As a result, sensitive communications become vulnerable.
Targeting and Evolution
The flaw stems from GSMA TS.48 versions up to 6.0. A report notes v7.0 fixes this issue now. Moreover, it builds on 2019 Java Card flaws. Therefore, the risk has grown over time.
Exploitation and Challenges
Attackers need physical access and public keys to strike. They can download profiles in cleartext from operators. Additionally, nation-state groups find this feasible. This demands robust defenses to counter the threat.
Broader Security Risks
Similar flaws impact memory safety in Java Card VMs. They break applet firewalls and enable native code. For example, backdoors can intercept all traffic. As a result, IoT security weakens significantly.
Detection and Mitigation
The vulnerability evades operator oversight. Modified profiles hide from remote control. Moreover, outdated versions heighten risks. This requires constant updates to stay protected.
Preventing eSIM Flaw Attacks
To avoid eSIM flaws, update device firmware regularly. For example, check for security patches often. Seek expert penetration testing to uncover hidden weaknesses and bolster defenses. Additionally, use secure IoT configurations. These steps help safeguard your devices from attacks.
Sleep well, we got you covered.
